[quote=@FantasyChic]
How many characters are we allowed at the start? I got an idea for an inmate and a Counselor 
[/quote]

I'm thinking each person being allowed to control two characters at once (Making another if one of them dies, gets released/quits their job or otherwise moves out of the game area in a way that they would no longer being affecting the plot unless brought back) would be a good way to start. This may change if more than 2 become relevant at the same time, or characters that left without being killed off become relevant again.